Trolley-wheel.



PATENTED DEC. 22, 1903.

H. W. BROGKETT.

TROLLEY WHEEL. APPLICATION IYILED JUNE 2a, 1903.

N0 MODEL.

Inventor.

Witnesses 7 Attorney.

warms co, PHDTD-LIYHO MSHINGTON,.D. c,

HERBERT W. RocKETT, oE HAMDEN, ooNNEcTi-o HALF To THE EAST HAMPTON BELLCOMPANY, OF EAST"HAM,PTON;"

Patented December 22, 19032 CONNECTICUT, A CORPORATION OF CONNECTICUT.

TROLLEY-WH EEL.

SPECIFICATION formingpart of Letters Patent No. 747,371, dated December22, 1903.

Application filed June 23, 1903. Serial No. 162,720it (No model.)

T at whom it may concern:

Be itknown that I, HERBERT W. BRocKETT,

a citizen of the United States,residing at Hamde'n, in the county of NewHaven and State of Connecticut, have invented certain new and usefulImprovements in Trolley-Wheels, of which the following is aspecification, reference being had therein to the accompanying drawings.

My invention relates to improvements in trolley-wheels, and has for itsobject, among other things, to provide a device of this character thatwill prevent the displacement of the trolley from the wire or conductor,and, further, to construct the same of few parts, which can beeconomically constructed and readily assembled.

To these and other ends my invention consists in the trolley-wheelhaving certain details of constructionand combination of parts, as Willbe hereinafter described,and more particularly pointed out in theclaims.

Referring to the drawings, in which like numerals designate like partsin both figures, Figure 1 is an elevation of my device complete, andFig. 2 is a sectional elevation thereof.

In the drawings the numeral 1 designates one of the yoke-arms having alateral lug 2 upon the bottom end thereof, within which is secured theupper end of the trolley-pole 3.

.Secured to this lug by the screws 4:, parallel with the yoke-arm 1, isthe separable yokearm 5. Endwise movement of this yoke-arm upon the lug'is prevented in one direction by the shoulder-lug 13. Each of theyoke-arms 1 and 5 are provided with bushings 6 6, having the heads 7thereon, which bushings may be secured against rotation by friction orany of the other common means well known to the art. Between the innerfaces of the bush-' ings 6 is the grooved trolley 8, having apinion-shaft 9 projecting laterally from either side thereof androtatably mounted within the said bushings. This shaft is shown in thedrawings as being made integral with the trolley; but I do not limitmyself to such construction, as it. may be separate, if desired.Rotatably mounted upon the bushings 6 be tween the heads 7 and the innerfaces of the yoke-arms 1 and 5 are the disks 10, havingoppositely-disposed recesses 11 of substantially the same diameter asthe outside diameter of the trolley 8 and the inner faces 12 of saiddisks being in the same vertical plane as the outer edges of the trolley8.

In operation the trolley-wire is within thegroove in the face of thetrolley 8, which rotates freely between the disks 10. If while inoperation the trolley for any reason-runs off the wire, the inner faces12of thedisks 1O abut against the wire and prevent the wheel fromdisengagement withthe wire, but forces the same back again into thegroove of the trolley. The disks remain rigid at all times except whenthey abut against the wire, when the friction rotates them slightly andreduces the possibility of wear to the minimum.

There are minor changes and alterations that can be made within myinvention aside from. those herein shown and described, and I wouldtherefore have it understood that I do not limit myself to the exactconstruction herein shown and described, but claim all that falls fairlywithin the spirit and scope of myinvention.

' Having described myinvention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a device of the character described,

- the combination with a yoke having two parallel arms; a bushing ineach of said arms; a trolley-wheel rotatably mounted in said bushingsbetween said arms; and a disk rotatably mounted upon said bushings uponeither side of said trolley-wheel, substantially as shown and described.

2. In a device of the character described, the combination with a yokehaving two parallel arms; a bushing in each of said arms, said bushingsbeing provided at their inner ends with an enlarged head; atrolley-wheel In testimony whereof I afiix my signature rotatablymounted in said bushings between in presence of two witnesses. saidarmsand disks rotatably mounted upon said bushings between the saidenlarged head HERBERT BROOKETT' 5 and the yoke-arms and upon either sideof Witnesses:

said trolley-wheel, substantially as shown GEORGE E. HALL,

and described. FLORENCE H. MONK.

